The Outdoor series was designed for running and hiking on rugged trails in unpredictable weather. Newly upgraded to Merino wool construction, the Outdoor Midweight Crew Wool toesock features a ribbed leg and crew height for a tighter, more ergonomic fit that keeps out dirt and debris. The midweight terry footbed increases comfort, while the signature Injinji five-toe design ensures the foot can be fully utilized by promoting natural foot splay.Features & Benefits:Arch Support:- Supportive band that offers a secure and stable fit.Blister Prevention:- With each toe protected, skin-on-skin friction is completely eliminated protecting your foot from blisters & just as important, hotspots.Moisture Management:- Each toe is wrapped in sweat-wicking material so your foot will be drier and therfore more comfortable than in traditional socks.Total Foot Utilization:- When your toes are separated, properly aligned, and splayed it distributes your weight evenly which allows your entire foot to be engaged in any athletic activity.Mesh Top:- Provides maximum breathability and ventilation on the top of foot.Fiber Content:- Fiber content: 75% Merino Wool 22% Nylon 3% Lycra®Anti Odor:- Merino Wool naturally resists odor-causing bacteria by absorbing and expelling moisture.Natural Fibers:- Merino Wool fibers are inherently renewable and biodegradable.UV Protection:- Merino Wool helps block harmful UV rays.Wash & Care:- Line Dry: Line dry your Injinji socks to extend their lifetime.- Machine Wash: For best results, we recommend washing your Injinji socks on delicate in cold water.